Hottest Places in United States
Places With Highest Temperatures
North America's highest temperature ever recorded is 134 degrees Fahrenheit (56.7 degrees Celsius), which occurred at Greenland Ranch in Death Valley, California on July 10, 1913. No other United States location has come close to experiencing such intense heat.
The 134 °F reading in Death Valley was declared the world's most extreme high temperature by the World Meteorological Organization in 2012. After reviewing records, WMO concluded that a September 13, 1922 measurement of 136.4 °F (58 °C) in El Azizia, Libya resulted from errors, rather than exceptional heat.
During the century that followed setting the world record, the hottest day in Death Valley was a relatively balmy 129 °F. The Mojave Desert site didn't heat up to 130 °F again until August 2020.
Temperatures over 125 °F (48.9 °C) are unusual events, even in the hottest places of the United States, except Death Valley. Extreme heat in the country is largely confined to a small region of lower elevations in the Mojave Desert. The area stretches roughly from Palm Springs to Phoenix and extends north up the Colorado River to Las Vegas.
Here is a sampling of places and dates when the thermometer has climbed to lofty highs.
|Death Valley, California||134||56.7||July 10, 1913|
|Death Valley, California||130||54.4||August 16, 2020|
|Death Valley, California||130||54.4||July 9, 2021|
|Death Valley, California||129||53.9||July 18, 1998|
|Death Valley, California||129||53.9||July 20, 2005|
|Death Valley, California||129||53.9||July 7, 2007|
|Death Valley, California||129||53.9||July 1, 2013|
|Death Valley, California||128||53.3||June 30, 1994|
|Death Valley, California||128||53.3||July 10, 2002|
|Death Valley, California||128||53.3||July 19, 2009|
|Death Valley, California||128||53.3||July 12, 2012|
|Death Valley, California||128||53.3||June 30, 2013|
|Death Valley, California||128||53.3||July 4, 2013|
|Lake Havasu City, Arizona||128||53.3||June 29, 1994|
|Gold Rock Ranch, California||127||52.8||July 28, 1995|
|Blythe, California||126||52.2||June 21, 2016|
|Bullhead City, Arizona||126||52.2||June 22, 2017|
|Mecca, California||126||52.2||June 26, 1990|
|Palmdale, California||126||52.2||July 28, 1995|
|Stovepipe Wells, California||126||52.2||August 17, 2020|
|Thermal, California||126||52.2||July 28, 1995|
|Buckeye, Arizona||125||51.7||July 28, 1995|
|Laughlin, Nevada||125||51.7||June 29, 1994|
|Laveen, Arizona||125||51.7||July 28, 1995|
|Litchfield Park, Arizona||125||51.7||July 29, 1995|
|Needles Airport, California||125||51.7||July 17, 2005|
|Needles Airport, California||125||51.7||June 20, 2016|
|Needles Airport, California||125||51.7||June 20, 2017|
|Parker, Arizona||125||51.7||June 21, 2016|
|Willow Beach, Arizona||124||51.1||July 19, 2005|
|Yuma Airport, Arizona||124||51.1||July 28, 1995|
|Casa Grande Monument, Arizona||123||50.6||June 30, 1994|
|Palm Springs, California||123||50.6||July 28, 1995|
|Baker, California||122||50.0||July 1, 2013|
|Phoenix Airport, Arizona||122||50.0||June 26, 1990|
|Waste Isolation Pilot Plant, NM||122||50.0||June 27, 1994|
Warmest Places All Year
Out of 7,247 weather stations across the United States, just some in four states report an average year-round temperature of over 77 °F (25 °C). Most of these stations are located in southern Florida or Hawaii. Death Valley also makes the list, as does one site in Texas.
The mean annual temperatures given here are 30-year averages, based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.
|Location||Mean °F||Mean °C|
|Key West, Florida||78.9||26.0|
|Pu'ukohola Heiau Historic Site, HI||78.9||26.0|
|Death Valley, California||78.8||26.0|
|Key Biscayne, Florida||78.7||25.9|
|Kailua Kona, Big Island, Hawaii||78.3||25.7|
|Honolulu Airport, Oahu, Hawaii||78.1||25.6|
|Crawl Key, Florida||77.8||25.4|
|Key Largo, Florida||77.8||25.4|
|Dry Tortugas, Florida||77.8||25.4|
|Waikiki, Oahu, Hawaii||77.7||25.4|
|Bahia Honda Key, Florida||77.6||25.3|
|Duck Key, Florida||77.6||25.3|
|Miami International Airport, FL||77.5||25.3|
|Mahaulepu, Kauai, Hawaii||77.4||25.2|
|Pembroke Pines, Florida||77.4||25.2|
|Pompano Beach, Florida||77.2||25.1|
|Kahului, Maui, Hawaii||77.1||25.1|
|Kapolei, Oahu, Hawaii||77.1||25.0|
In another four states, a few locations achieve an average yearly temperature that's above 70 °F.
|Location||Mean °F||Mean °C|
|New Orleans, Audubon Park, LA||71.8||22.1|
|Callville Bay, Nevada||71.7||22.1|
|Okefenokee Wildlife Refuge, Georgia||70.3||21.3|
Places With the Most 100-Degree Weather
The day's temperature at a smattering of places in California and Arizona peaks in the 100s Fahrenheit, (above 37 °C) for over one-third of the year.
|Location||Days Over 99 °F|
|Death Valley, California||147|
|Bullhead City, Arizona||135|
|Gila Bend, Arizona||134|
|Yuma Quartermaster Depot, AZ||133|
|Stovepipe Wells, California||133|
|Lake Havasu, Arizona||128|
|Willow Beach, Arizona||126|
|Palm Springs, California||123|
|Alamo Lake, Arizona||122|
Most Days With Highest Temperature
When it comes to being the hottest place in the continental United States for any single day, Death Valley once again far outpaces the competition. During a recent decade, Death Valley ranked as the day's number one hottest spot nearly three times as often as any other US location.
|Death Valley, California||803|
|Lake Havasu City, Arizona||276|
|Bullhead City, Arizona||177|
|Fort Meyers, Florida||159|
|Gila Bend, Arizona||98|
Khalid Ibrahim El Fadli, Randall S. Cerveny , Christopher C. Burt, Philip Eden, David Parker , Manola Brunet, Thomas C. Peterson, Gianpaolo Mordacchini, Vinicio Pelino, Pierre Bessemoulin, José Luis Stella, Fatima Driouech, M.M Abdel wahab and Matthew B. Pace. 2012. World Meteorological Organization Assessment of the Purported World Record 58°C Temperature Extreme at El Azizia, Libya (13 September 1922). Bulletin of the American Meteorological Society.
Guy King. 2007. The Hottest and Coldest Places in the Conterminous United States. Yearbook of the Association of Pacific Coast Geographers. 69: 101-114.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.
Steven Roof and Charlie Callagan. 2003. The Climate of Death Valley, California. Bulletin of the American Meteorological Society. 84: 1725-1739.
Utah State University. Utah Climate Center.
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